506323 has 4 divisors (see below), whose sum is σ = 522688. Its totient is φ = 489960.

The previous prime is 506291. The next prime is 506327. The reversal of 506323 is 323605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 506323 - 2⁵ = 506291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 506323.

It is not an unprimeable number, because it can be changed into a prime (506327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8136 + ... + 8197.

It is an arithmetic number, because the mean of its divisors is an integer number (130672).

2⁵⁰⁶³²³ is an apocalyptic number.

506323 is a deficient number, since it is larger than the sum of its proper divisors (16365).

506323 is a wasteful number, since it uses less digits than its factorization.

506323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16364.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 506323 is about 711.5637708596. The cubic root of 506323 is about 79.7032233231.

Adding to 506323 its reverse (323605), we get a palindrome (829928).

The spelling of 506323 in words is "five hundred six thousand, three hundred twenty-three".